Method of arc welding



1,638,892 Aug.16. 1927. l R. BTRESAU nunon or Anc WELDING Filedneo. a. 1922 y IN1/15Y TORI /CF/'c/z ard LSV/e s a,

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Patentedug. 16,1927. y

channel bar may RICHARD STESSA-U,

OF WAUWATOSA, WISCONSIN, ASSIGNQB TO A40. SMITH CORTON- 'riom or MILWAUKEE, wisconsin, A conroaurion or maw zong.

METHOD OF ABC WELDING.

Application mea December s, 192s., serial in. 605,590..

My present invention relates to a new and im'roved method yof electric are welding, which I shall denominate as edge welding, in contradistinction to the recognized methods of butt welding, fvlap welding and spot welding now commonly used in uniting metal plates. e,

It has been found in certain classes of work in which flat metal plates are required to be superposed with their flat sides in contact, that such plates.y may be effectively joined together by welding along the edges thereof. In certain specific constructions, it is very advantageous to employ this method of electric welding to effect union ofthe parts. When the metal plates incorporated in such work, or the edges constituting the weldin surface have 4the same gauge, the same t ermal conditions are present in both plates, so that the welding may be evenly and uniformly effected, by reason of the fact that the juxtaposed edges of the superposed plates will be fused to an equal degree in the welding operation.

My invention, which comprises the operations of producing the results desired, as well as articles produced in the practice of iny method of welding, will now be specifically described, and the'novelty thereof pointed out in the appended claim. r

In the accompanying drawing, y

Figure 1 is a perspective view ,showing the application of my new method of welding to the edges of superposed plates of uniform gauge. y .y

Fig. 2 is a like View showing how a be reinforced in the same manner.

Fig. 3 is a perspective view of a rear axle housing for an automobile, in which the gear openings are reinforced by rings having an internal diameter co-inciding with the diameter of the openings in the housings.

Fie the line' 4-4, Fig. 3, showing more clearly the application of my improved method to the production of the axle housing.

Fi 5 is a vertical sectional view, it may be o the bung of a barrel, showing how the sput is welded in position to the sheet by the practice of my method.

The invention contemplates in the manufacture of certain articles, the welding vof a plurality of metal plates or other parts superposed or having their sides in lateral engagement, in which the parts involved in the welding operation` are of the saine gauge, so tiatk identical thermal conditions will exist in all of the parts tobe welded. This fundamental condition is necessary, in order that the heat generated by the welding arc .may affect the parts equally and efect their fusion in the same degree in the welding operation, so as to produce a perfectly welded joint.

l -The arrangements illustrated inthe drawing have been selected as convenient examples Aof constructions embodying ,my invent-ion, and to which my improved method may be applied, but it will be understood that such method moiy be employed in connection with the pr ucton of generally similar articles other than those which are shown. y

Fig. l illustrates the method in the simples lform of its application. in this fig-4 ui'e, two. metal' plates lO'and 11m are superposed with their flat sides in close or lateral engagement, `and with the edges to be welded in alignment` or register, so as to 'I present a plane surface which may be subjected to welding, either by traversing the Work with respect to the point of the current conducting weldrod or vice versa, as may be expedient. The edges of the plates l0 and 1l, being of uniformgauge, stantially so, are fusedein `an equal degree to constitute a perfectlyv welded line at the point of their' union, so that the two plates are 'oined as in integral structure. The meta flowing from the fusible weldrod, when one of that type is employed, is incor orated in the joint. 4 is an enlarged vertical section on` ig. 2 represents the application of the process to the reinforcement of a flanged or channeled bar. It -is desirable to reinforce the channeled-bars of an or otherstructure, :at ertain points by the addition of a plate, in order to create a' reinor subautomobile frame, i

forcement which will riit 'the at'- ugstandin annular rib 19 on the outer face 'taclimentl'ofl adjunctivgeeparts to a frame thereog which 1rib 19 has a radial thicklight inwei Usually, this reinforcement nesssubstantiall equal to the gauge of the vis effected riv 'ng asi'ipplementary plate 'metal from whic the rin 17 is formed, and Lin position, ut 'there exists en objection to Aof aheight `axially whii is proportionate 1e 'this practicev in ,that the several, rivet holesto the de pth to which the fusion is desired. in the `channel bar, by means of which the. In inserting sput in the o with the reinforcement iasecured'to the bargsarve to lian '21-bearing-upon the lower ace'of the weaken the latter to an uncertaindegree. ah 16, the exposed faces of the annular io The flanged bar tobe reinforced is'indicated Iris 17 and 19 are brought flush so as to 'Il by the numeral and the reinforcing plata orm a curved welding in a l by the numeral such reinforcing plate fiat plane. By the apphcation of the elecbeing. drawn into the 'form of a channel 'andtric arc the upstandmg y gms hvingguch exterior gmx-ag will `enpms l' 8nd 19 tr I8 magg C0m- I ableit to lit snugl -the'channel of pletely welded, and thus umte the sputl in Il* the first mentions bar, Awith the flanged its proper positionas a permanent part of edges of both parts standing llush, as in the .arrel construction, the welded area com- AFig. 2, so as to present an aligned welding pllslng the' rib 0f the sput and the contigo.,

surfaceoom of twoed .asinF'.Q.ous artoftheaheetemhodiedinthe 2.0 1. The are welded atgebzith sides lcgi', vthough I have described tlieconsti-miig-` l5 the bardas fore, and thus the bar is ention shown in Fig 5- as particularly a dowed with ster byreasonof. plicable for use inthe reduction of barre reduction in t enumber'o tontions reit is obvious that this orm of the invention viously mquir,d, y i p may be employed inthe production of tanks My invention n a plied also toi or other containers orsimilar structures. An 9o' pressed steel automobile'axle 14, o'f advantage residing in the present method of -oomm'on type,- and as shown in Figs. 8 and welding is that 1n the formation of the open- 4.- On their opposite sides such housings are ing in the sheet of a container, the upstan A provided .with through openings to permit vmg ring formed integrally with the sheet,

,I0 assembling of the gears, and in order to seserves as a reinforcement and prevents Awax'p- 9 6' cure the ousings in j 'tion and sup rt mg of the thin sheet during the welding the elements 'emblema-ein, and .a ord. operation and consequently whenthe sput means for attachingthe cap to close' the is assembled in the ciienmg preparato to outerol g itianecessa'ry to reinforce the welding, theproper gnment'of the geg IQ metal a ut e openings by'meansof rings is assur Asapreliminary, theedges may 10o 15, tplaced interior] ereof.' The' openings iv be tacked together by spot welding. in e form hou an 'the rings' be' of uni- .The invention is a plicable generali to diamcltel the edges thereof :iig brought constructionsin whicli) metal plates or het into register in the manner shown, so `as to elements are superposed or ral'ranlged with 40 present an even surface in the form of. an their wider flat surfaces in latera engage-106 arcuate plan which constitutes the curved ment with each other, and gresentin prof i welding ine, the edges-bein welded as bejecting margins or portions a su n-gg fore indicated. 'In the wel operation, tially the same gauge which constitute the/ the housi' "may be ,f rotated so that the area in which the welding is to be effected curved wel in line will move past the pointY and whichl margins or portions are fused |10 of theweldro or the latter may be rotated together by' an electricV arc in an even and so as totraverse the welding line. Y v umform manner to produce an integral struce foregoing examples the two vmetals ture l This result is due to the fact that the to be welded are of the same gauge, or subed constituting the welding surface and 60 stantially so for the purposes of the inven- `ein dying the area of the weld present in lll tion, no special preparation of either part all cases substantially the same thermal connecessary in order to adapt'my in venditions, and are therefore equally affected by tion thereto. the temperature of the electric am. Y vIn Fig. ,5 :I have shown in invention as Although I have described theA use of the applied to the practice of we ding sputa in electric arc as a means for fu the ali ed l position to constitute the bung hole or other edges .of the parte to be weld it w be 'opening' of a barrel. In this ligure, the nu-r understood that other means, such as s for lmerel 16- indicates a portion of the 'sheet instance, may be employed with sati actory from which the barrel is formed, the openresults. I consider all of these methods as 00 ing therein being provided with an upstandequivalent and as within the scope of my in- 123 'ing ring 17, formed integrally of the sheet, vention. 1 4 i The sput 18 is a forging or stamping, as Having thus described my invention, what usual and is specially constructed so as to I claim and desire to secure by Letters Patbe adapted for use in' connection with my ent of the United States, is: G5 present invention by the formation of an The method of attaching sputs in position l4 which consists in providing an opening in a. metal sheet with an upstandng ring, forming a sput with an annular rib on the face thereof, said ring and rib having substantially the same gauge to present; equal thermal conditions, arranging the sput in the opening with the edges of the ring and rib aligned to form a welding surface, and fusing the ring and rib by means of an electric arc to unite 'the parts into an integral struc- 10 ture.

In'testimony whereof, I have si ned my name at Milwaukee, this 4th day o December, 1922.

R. STRESAU. 

